Silencer for oil burners



S Y. 11 m M 5 N 6 I, W, m 1 f. EB S ma R9 i LL I w .mn C M E mm N WF I s M 6 m 1- B I A 5 a Patented Oct. 5, 1926. I

' EDWIN ooornn WILLS, or NEWARK, NEWJERSEY.

SILENGER FOR OIL BUBNERS.

Application filed January My present invention relates generally to oil burners, especially of that type wherein oil is mixed with air or steam in order to form a highly combustible mixture as for instance shown in my Patents 1,493,584 and 1,510,639, respectively, dated May 14, 1924, and October 8, 1924.

Burners of this type are somewhat noisy in operation and in proposing a device having for its primary object the elimination of such noise, my invention also claims to utilize a simple inexpensive construction for this purpose as well as one which will avoid any interference with the proper desired action of the burner itself.

In the accompanying drawing which illustrates my present invention and forms a part of this specification,

Figure 1 is a side view illustrating a burner equipped with my improved silencer.

Figure 2 is an end view of the discharge head shown in Figure 1.

Figures 3 and 4 are, respectively an end view and partial section of, a discharge head of slightly modified construction with respect to the discharge orifices.

Referring now to these figures and particularly to Figure 1 I have shown a burner generally indicated at 10, to which oil is fed through a pipe 11 and air or steam through a pipe 12, the oil and air or steam being mixed within the burner and dis charged therefrom for ignition in a thoroughly mixed condition through a nozzle pipe 13. 7

My invention proposes a silencer includ ing a pipe '14 forming a hollow tubular body which is connected to the burner or rather coupled by means of threads and a coupling ring 15, to the nozzle pipe 13 of the burner so that the products mixed in the burner continue from the nozzle into the tubular body of the silencer or in other words into the pipe 14.

The other end of the tubular body or pipe 14 is connected by virtue of a T 16 with a hollow tubular member disposed at right angles to the pipe 14 and including a nipple 17 extending beyond one side of the pipe, whose end is closed by an imperforate cap 18. The angular tubular member also in: cludes a short pipe section 19 extending be pend. the opposite side or the pipe 14 17, 1925. Serial N0. 3,116.

provided at its free end with an enlarged head 20, preferably of the spherical form shown, forming therein an enlarged open silencing chamber which outlets through oriflees in the head either in the form of slotted openings 21 as shown in Figures 1 and 2 or a series of perforations 22 as shown in the head 23 of Figures 3 and 4, from the latter of which figures it is to be particularly noted that the perforations are formed tapering, with their larger ends innermost.

It is obvious that with the silencer mounted as in Figure 1, that is coupled by the coupling ring or nut 15 to the burner nozzle 13, an open passage is provided for the mixed products, through the pipe 14 to the inner enlarged silencing chamber within the head 20 and it is equally obvious that in the flow of the products under whatever pressure is utilized to force the air or steam and oil through the burner, a vacuum will result within the nipple 17 closed by the cap 18. The result of this is that the nipple 17 and cap 18 become very highly heated with the burner in use and with the silencer extending, of course, into whatever combus tion chamber the burner is employed to heat, and this high degree of heat absorbed by the nipple 17 or its cap 18 will be transferred to the mixed products flowing to the silencing chamber so that the latter will in fact become super-heated with the result that gases are placed in a condition inducing more thorough and complete combustion with a consequent reduction in carbon formation.

My improved silencer is both simple and inexpensive, may be readily applied to a burner, and will be lasting and eifective in use.

What I claim is 1. In combination with an oil burner and the like having a nozzle pipe, of a silencer including a pipe coupled at one end to the nozzle pipe, a T at the other end. of the latter pipe, a nipple extending from one side of the T and having a cap forming a closure therefor, a short pipe section extending from the opposite side of the T, and an enlarged apertured head on said latter pipe section forming therein an enlarged open silencing chamber.

2. A silencer for silt having extending end sides of the tubular bod ,a cap permanenta tubular body adapted to be coupled at one end to a burner nozzle, a hollow member intermediate the ends of which the other end of said body opens laterally, said member portions atopposite ly closing one end of the hollow member and forming a dead air space at one side of the said body, and an enlarged head forming a I silencing chamber therein at the other end of 10 the hollow member and at the opposite side of the body, having discharge orifices.

EDWIN COOPER WILLS. 

